Miss. Code Ann. § 43-21-611

If the youth court finds at the disposition hearing that a delinquent child, a child in need of supervision, a neglected child, an abused child or a dependent child is also a child in need of special care, the youth court may, in its discretion, make any appropriate additional disposition designed for the treatment of the disability or infirmity, which may include civil commitment to a state institution providing care for that disability or infirmity. Any commitment, including one to a Department of Mental Health facility, ordered pursuant to this section shall be in compliance with the requirements for civil commitment as set forth in Section 41-21-61 et seq. Discharge from a Department of Mental Health facility shall be made pursuant to the provisions of Section 41-21-87. Nothing contained in this section shall require any state institution, department or agency to provide any service, treatment or facility if said service, treatment or facility is not available, nor shall this section be construed to authorize the youth court to overrule an expulsion or suspension decision of appropriate school authorities.